Electric control cabinet with waterproof and heat dissipation functions
By combining a heat dissipation cover and a waterproof cover in the electrical control cabinet, the contradiction between waterproofing and heat dissipation in the electrical control cabinet is resolved, achieving effective heat dissipation and waterproofing, and improving the safety and reliability of the equipment.
Patent Information
- Application Number
- CN202520602853.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-04-01
AI Technical Summary
Existing electrical control cabinets cannot effectively dissipate heat while ensuring waterproof performance, leading to overheating or damage to the equipment. Furthermore, existing waterproof designs may affect heat dissipation.
It adopts a combination design of heat dissipation cover and waterproof cover. The heat dissipation cover has a housing space and ventilation opening, and the mounting plate is equipped with a heat dissipation fan. Hot air is discharged through the air outlet of the waterproof cover to prevent rainwater backflow.
It achieves a balance between waterproofing and heat dissipation, improving the operational safety and reliability of the equipment, reducing maintenance costs, and enhancing heat dissipation efficiency and equipment stability.
Smart Images

Figure CN223772398U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical control cabinet technology, and in particular to an electrical control cabinet that combines waterproofing and heat dissipation. Background Technology
[0002] As a key piece of equipment in industrial automation and power control systems, electrical control cabinets often integrate a large number of electronic components and control modules. These components generate significant heat during operation, and if heat dissipation is not timely, it may lead to overheating or even damage to the equipment. Therefore, a good heat dissipation design is the foundation for the reliable operation of electrical control cabinets. At the same time, electrical control cabinets are mostly used outdoors or in harsh environments, requiring basic waterproof performance to prevent rainwater infiltration from causing short circuits or corrosion.
[0003] Most electrical control cabinets on the market currently employ a single heat dissipation structure, such as installing cooling fans or natural ventilation openings on the top or side walls of the cabinet to remove heat through airflow. However, while ensuring heat dissipation efficiency, this type of structure often fails to provide waterproofing. Some chiller units even lack dedicated rainproof designs for their electrical control systems, making them susceptible to damage from direct rain. Furthermore, while some electrical control cabinets do have rainproof measures, their complex structure or excessive sealing can actually restrict airflow and negatively impact heat dissipation. Utility Model Content
[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an electrical control cabinet that combines waterproofing and heat dissipation.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An electrical control cabinet that combines waterproofing and heat dissipation includes: a cabinet body, a heat dissipation cover, a mounting plate, several heat dissipation fans, and a waterproof cover; the top of the cabinet body has an opening, and a first edge extending inward is formed around the opening; the heat dissipation cover passes through the opening and is at least partially disposed within the cabinet body, with an accommodating space formed in the middle of the heat dissipation cover; the edge of the heat dissipation cover overlaps with the first edge and is detachably fixed; the mounting plate is installed at the bottom of the heat dissipation cover and has several ventilation openings; the heat dissipation fans are disposed within the accommodating space and are detachably disposed on the mounting plate corresponding to the ventilation openings; the waterproof cover at least partially covers the top of the cabinet body, has an internal cavity structure, and has several air outlets; the heat dissipation fans guide hot air from inside the cabinet into the waterproof cover and then discharge it through the air outlets.
[0007] Furthermore, the waterproof cover includes a cap and a body surrounding the bottom of the cap; the top surface of the cap is a herringbone-shaped inclined plane; and the vent is located on the bottom surface of the body.
[0008] Furthermore, the bottom surface of the cover is a plane that slopes upwards from the inside.
[0009] Furthermore, the air vents are evenly distributed on the bottom surface of the cover.
[0010] Furthermore, the heat dissipation cover has a second edge around its perimeter; the bottom surface of the cover has a third edge extending inward around its perimeter; the second edge overlaps the first edge, and the third edge overlaps the second edge; the third edge, the second edge, and the first edge are fixed by screws.
[0011] Furthermore, the mounting plate is fixedly connected to the heat sink cover with screws.
[0012] The aforementioned electrical control cabinet, which combines waterproofing and heat dissipation, has a cooling fan installed at the ventilation opening of the mounting plate, and a waterproof cover with a cavity structure is placed on the outside of the heat dissipation cover. This allows hot air to be discharged through the air outlet in the waterproof cover after being directed out by the fan, effectively preventing rainwater backflow while achieving good heat dissipation for the electrical control cabinet and improving the safety and reliability of equipment operation. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of the electrical control cabinet provided by this utility model;
[0014] Figure 2 This is a right sectional view of the electrical control cabinet provided by this utility model;
[0015] Figure 3 This is an exploded view of the electrical control cabinet provided by this utility model;
[0016] Figure 4 This is a bottom view of the waterproof cover plate provided by this utility model. Detailed Implementation
[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] In addition, to clearly illustrate the technical solution of this application, the following are also defined: Figure 1 The top, bottom, left, right, front, and back sides are shown.
[0019] like Figures 1 to 3 As shown, this application provides an electrical control cabinet that combines waterproofing and heat dissipation. The electrical control cabinet includes: a cabinet body 1, a heat dissipation cover 2, a mounting plate 3, several heat dissipation fans 4, and a waterproof cover 5.
[0020] Specifically, the cabinet 1 has an opening at the top, around which a first edge 11 extends inward; a heat dissipation cover 2 passes through the opening and is at least partially disposed within the cabinet 1, with a receiving space formed in the middle of the heat dissipation cover 2. The edge of the heat dissipation cover 2 overlaps with the first edge 11 and is detachably fixed. A mounting plate 3 is installed at the bottom of the heat dissipation cover 2, and the mounting plate 3 has several ventilation openings. A cooling fan 4 is disposed within the receiving space, and is detachably mounted on the mounting plate 3 corresponding to the ventilation openings. A waterproof cover 5 at least partially covers the top of the cabinet 1, has an internal cavity structure, and has several air outlets 6. The cooling fan 4 draws hot air from inside the cabinet 1 into the waterproof cover 5, and then exhausts it through the air outlets 6.
[0021] The above-mentioned design effectively improves the heat dissipation efficiency inside cabinet 1, preventing heat buildup that could lead to performance degradation or malfunction. Simultaneously, by centrally arranging the fans within the internal space, the risk of environmental interference and damage caused by exposed external fans is reduced. The cavity design of the waterproof cover 5, combined with the bottom exhaust vent, not only ensures effective heat dissipation but also prevents rainwater backflow, significantly enhancing the overall safety and reliability of the equipment. Furthermore, the detachable design of the ventilation components greatly improves the convenience of maintenance and replacement, reducing operating costs.
[0022] like Figure 2 and Figure 4 As shown, the waterproof cover 5 includes a cap 51 and a cover body 52 surrounding the bottom of the cap 51. The top surface of the cap 51 is a herringbone-shaped inclined plane to facilitate rapid drainage and dissipation of rainwater. An air vent 6 is located on the bottom surface of the cover body 52 to prevent backflow of moisture and ensure the dryness and safety of the internal equipment.
[0023] Specifically, the bottom surface of the cover 52 is a plane that slopes upwards from the inside, which helps prevent moisture from entering the equipment cavity along the bottom surface of the cover 52, thereby improving the overall hydrophobicity and safety.
[0024] More specifically, the air outlets 6 are evenly distributed on the bottom surface of the cover 52, which helps optimize the overall airflow path, allowing hot air inside the equipment to be discharged more quickly and evenly, improving the stability and efficiency of the heat dissipation system. At the same time, it also reduces vibration or noise problems caused by excessive local airflow. Furthermore, it prevents equipment deformation and aging caused by localized overheating of the waterproof cover 5.
[0025] Furthermore, the heat dissipation cover 2 has a second edge 21 around its perimeter. The bottom surface of the cap 51 has a third edge 53 extending inward around its perimeter. The second edge 21 overlaps the first edge 11, and the third edge 53 overlaps the second edge 21. The third edge 53, the second edge 21, and the first edge 11 are fixed with screws. This design improves the stability of the electrical control cabinet structure in harsh environments such as high temperature and high humidity, enhances assembly convenience, facilitates subsequent maintenance and disassembly, and promotes long-term reliable operation of the equipment. It should be understood that, depending on actual needs, the third edge 53, the second edge 21, and the first edge 11 can also be fixed by welding, riveting, or other methods.
[0026] Furthermore, the mounting plate 3 is fixedly connected to the heat sink cover 2 with screws to ensure that the mounting plate 3 will not loosen due to fan vibration or thermal expansion and contraction during operation. At the same time, it facilitates the disassembly and replacement of the mounting plate 3 and the cooling fan 4, which is helpful for the maintenance of the cooling system.
[0027] The above description of embodiments of the present invention, through which those skilled in the art are able to implement or use the present invention, will be readily apparent to those skilled in the art. Various modifications to these embodiments will be readily apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novelty disclosed herein.
Claims
1. An electric control cabinet which is waterproof and heat dissipating, characterized in that, The utility model relates to a cabinet, and particularly relates to a cabinet with waterproof cover plate and heat dissipation cover plate. The cabinet (1) is provided with an opening at the top, and a first edge (11) extends inward around the opening. The heat dissipation cover plate (2) passes through the opening and is at least partially arranged in the cabinet (1), and a receiving space is formed in the middle of the heat dissipation cover plate (2). The installation plate (3) is arranged at the bottom of the heat dissipation cover plate (2), and a plurality of air vents are arranged on the installation plate (3). A plurality of heat dissipation fans (4) are arranged in the receiving space and are detachably arranged on the installation plate (3) corresponding to the air vents. The waterproof cover plate (5) at least partially covers the top of the cabinet (1) and has a hollow structure, and a plurality of air outlets (6) are arranged on the waterproof cover plate (5). The heat dissipation fans (4) guide the hot air in the cabinet (1) to the waterproof cover plate (5) and then discharge the hot air through the air outlets (6).
2. The electric control cabinet with waterproof and heat dissipation as claimed in claim 1, wherein, The waterproof cover plate (5) comprises a cap (51) and a cover body (52) arranged around the bottom of the cap (51).
3. The electric control cabinet with waterproof and heat dissipation as claimed in claim 2, wherein, The top surface of the cap (51) is an inclined plane in the shape of a chevron.
4. The electric control cabinet with waterproof and heat dissipation according to claim 2, characterized in that, The air outlets (6) are arranged on the bottom surface of the cover body (52).
5. The electric control cabinet with waterproof and heat dissipation as claimed in claim 2, wherein, The bottom surface of the cover body (52) is an inclined plane with the inner side upward.
6. The electric control cabinet with waterproof and heat dissipation as claimed in claim 1, wherein, The air outlets (6) are uniformly arranged on the bottom surface of the cover body (52). The heat dissipation cover plate (2) is provided with a second edge (21) around the periphery. The bottom surface of the cap (51) is provided with a third edge (53) extending inward around the periphery. The second edge (21) is overlapped on the first edge (11), and the third edge (53) is overlapped on the second edge (21). The third edge (53), the second edge (21), and the first edge (11) are fixed by screws. The installation plate (3) is fixedly connected with the heat dissipation cover plate (2) by screws.